Walder Wyss Ltd. represents the Swiss Government, federal and cantonal entities, public sector clients, hospitals, and large pharmaceutical companies in a wide range of public law related matters including government procurement proceedings, expert opinions, administrative proceedings, and planning proceedings. Practice head Hans Rudolf Trüeb advises domestic and international clients on competition and procurement matters, and has experience in the technology, telecoms, and energy sectors. Daniel Staffelbach advises clients on all aspects relating to the healthcare and insurance industries. Transactions lawyer Ramona Wyss has extensive experience handling issues concerning regulated industries. Martin Zobl has a special focus on public procurement, healthcare and life sciences, energy, infrastructure, and transport.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘When working with Walder Wyss, we feel a very high degree of commitment, responsiveness, and ownership. It has proven very helpful to us that they have a deep understanding of our business, and the energy market in general.’
  • ‘Hans Rudolf Trüeb, Ramona Wyss and Martin Zobl all stand for excellence and seem to benefit from a great reputation on the market. Senior statesman H.R. Trüeb built up Walder Wyss public law practice some 20 years ago and has long-standing expertise. Both Ramona Wyss and Martin Zobl are extremely smart and knowledgeable in their areas of expertise, and at the same time very hands-on.’
  • ‘Walder Wyss public law team provides high quality, easy-access, tailor-made and quick services.’
  • ‘Hans Rudolf Trüeb is a top expert in public procurement law with many years of professional experience. His advice helps us to find good solutions. His industry and process experience helps us to find good and pragmatic solutions, and to carry out complex procurement projects safely. Lena Götzinger is a very competent lawyer and specialist in public procurement law.’
  • ‘We truly appreciate the support by Hans Rudolf Trueb who is an outstanding professional and person, well known in the Swiss market. His longstanding experience and deep knowledge of the law has been invaluable for us. Plus, he is a successful litigator whom you want to see at your side in tight cases.'
  • 'Martin Zobl, a younger partner of the firm, has built an impressive track record in procurement cases. With his likeable personality and quick comprehension, he is a great asset for the firm.'
  • ‘Extremely trustworthy, high level of reliability, integrity, excellent technical competence and understanding, consistently on-time delivery.’
  • ‘This team has very profound knowledge in public law. In my view, it is the market leader in this field.’

Key clients

  • Swiss Confederation (with all its administrative branches)
  • Canton of Zurich - Office for Water, Energy and Air (AWEL)
  • Axpo Group (Axpo Holding, Axpo Power, Axpo Trading)
  • Energy 360 Grad AG
  • SBB – Swiss Federal Railways
  • SBB Cargo AG
  • Swiss Federal Institute of Technology (ETH)
  • ENGIE (France)
  • University of Zurich
  • University Hospital of Zurich
  • University Children's Hospital Zurich Eleonora Foundation
  • Hirslanden AG
  • Cantonal Hospital of Zug
  • Hospital Thurgau AG
  • Helsana insurance AG
  • Tertianum Group
  • Swiss Federal Office for Buildings and Logistics (BBL)
  • Armasuisse (federal agency for military resources)
  • SERV Swiss Export Risk Insurance
  • AEW Energie AG
  • EON

Work highlights

  • Advising and representing privately held hospitals of the Hirslanden Group in hospital planning proceedings in numerous Swiss Cantons.
  • Advising and representing Swiss Federal Railways (SBB) as defendant and procuring entity in a dozen public procurement proceedings in front of the Federal Administrative Court.
  • Advised and represented the Swiss Federal Institute of Technology (ETH) in numerous proceedings in front of ETH’s Appeals Commission, Federal Administrative Court and the Federal Supreme Court.

Lawyers

Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head

The lawyer(s) leading their teams.

Hans Rudolf Trüeb

Other key lawyers

Ramona Wyss, Martin Zobl, Daniel Zimmerli, Florian Roth, Lena Götzinger, Lucina Herzog, Felix Tuchschmid